code: def toStringPacket(self):
      if self.type == "string<packet>":
          return self.value.get_packet_string()
  
      if self.type in ["string<EOF>", "byte<EOF>"]:
          length = int(len(self.value))
          self.var_len = length
          if length == 0:
              return b""
          else:
              return struct.pack(
                  "{len}s".format(len=self.var_len),
                  bytes(self.value, "utf-8"),
              )[:length]
  
      if self.type == "string<NUL>":
          return bytes(self.value, "utf-8") + struct.pack("b", 0)
  
      if self.var_len.isdigit():
          length = int(self.var_len)
  
          if self.var_type == "int":
              # little endian format
              return struct.pack("Q", self.value)[:length]
          if self.var_type == "string":
              return struct.pack(
                  self.var_len + "s", bytes(self.value, "utf-8")
              )[:length]
          if self.var_type == "byte":
              return struct.pack(self.var_len + "s", self.value)[
                  :length
              ]
  
      elif self.var_len == "lenenc":
          if self.value is None:
              return NULL_VALUE
          if self.var_type == "int":
              return self.lenencInt(self.value)
  
          if self.var_type in ["byte", "string"]:
              value = (
                  self.value.decode()
                  if isinstance(self.value, bytes)
                  else self.value
              )
              if isinstance(value, str) is False and value is not None:
                  value = str(value)
  
              val_len = len(value.encode("utf8"))
  
              byte_count = int(
                  math.ceil(math.log((val_len + 1), 2) / 8)
              )
              if val_len < NULL_VALUE[0]:
                  return self.lenencInt(val_len) + bytes(value, "utf-8")
              if val_len >= NULL_VALUE[0] and byte_count <= 2:
                  return (
                      TWO_BYTE_ENC
                      + struct.pack("i", val_len)[:2]
                      + bytes(value, "utf-8")
                  )
              if byte_count <= 3:
                  return (
                      THREE_BYTE_ENC
                      + struct.pack("i", val_len)[:3]
                      + bytes(value, "utf-8")
                  )
              if byte_count <= 8:
                  return (
                      THREE_BYTE_ENC
                      + struct.pack("Q", val_len)[:8]
                      + bytes(value, "utf-8")
                  )
  
file_path: mindsdb/mindsdb/api/mysql/mysql_proxy/data_types/mysql_datum.py
imports: import math
  import struct
  from mindsdb.api.mysql.mysql_proxy.libs.constants.mysql import DEFAULT_CAPABILITIES, NULL_VALUE, ONE_BYTE_ENC, THREE_BYTE_ENC, TWO_BYTE_ENC
  from mindsdb.utilities import log
label_desc: Use image node_id 5 for calling the Datum obj's underlying member method code with example usage: obj.toStringPacket() and returns: self, unknown, bytes, struct, struct, struct, struct, NULL_VALUE, self, unknown, unknown, unknown, unknown